TAP::Parser::SourceHandler::Perl - Stream TAP from a Perl executable


NAME

TAP::Parser::SourceHandler::Perl - Stream TAP from a Perl executable


VERSION

Version 3.42


SYNOPSIS

  use TAP::Parser::Source;
  use TAP::Parser::SourceHandler::Perl;
  my $source = TAP::Parser::Source->new->raw( \'script.pl' );
  $source->assemble_meta;
  my $class = 'TAP::Parser::SourceHandler::Perl';
  my $vote  = $class->can_handle( $source );
  my $iter  = $class->make_iterator( $source );


DESCRIPTION

This is a Perl the TAP::Parser::SourceHandler manpage - it has 2 jobs:

1. Figure out if the the TAP::Parser::Source manpage it's given is actually a Perl script (can_handle).

2. Creates an iterator for Perl sources (make_iterator).

Unless you're writing a plugin or subclassing the TAP::Parser manpage, you probably won't need to use this module directly.


METHODS

Class Methods

can_handle

  my $vote = $class->can_handle( $source );

Only votes if $source looks like a file. Casts the following votes:

  0.9  if it has a shebang ala "#!...perl"
  0.75 if it has any shebang
  0.8  if it's a .t file
  0.9  if it's a .pl file
  0.75 if it's in a 't' directory
  0.25 by default (backwards compat)

make_iterator

  my $iterator = $class->make_iterator( $source );

Constructs & returns a new the TAP::Parser::Iterator::Process manpage for the source. Assumes $source->raw contains a reference to the perl script. croaks if the file could not be found.

The command to run is built as follows:

  $perl @switches $perl_script @test_args

The perl command to use is determined by get_perl. The command generated is guaranteed to preserve:

  PERL5LIB
  PERL5OPT
  Taint Mode, if set in the script's shebang

Note: the command generated will not respect any shebang line defined in your Perl script. This is only a problem if you have compiled a custom version of Perl or if you want to use a specific version of Perl for one test and a different version for another, for example:

  #!/path/to/a/custom_perl --some --args
  #!/usr/local/perl-5.6/bin/perl -w

Currently you need to write a plugin to get around this.

get_taint

Decode any taint switches from a Perl shebang line.

  # $taint will be 't'
  my $taint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl -t' );
  # $untaint will be undefined
  my $untaint = TAP::Parser::SourceHandler::Perl->get_taint( '#!/usr/bin/perl' );

get_perl

Gets the version of Perl currently running the test suite.


SUBCLASSING

Please see SUBCLASSING in the TAP::Parser manpage for a subclassing overview.

Example

  package MyPerlSourceHandler;
  use strict;
  use TAP::Parser::SourceHandler::Perl;
  use base 'TAP::Parser::SourceHandler::Perl';
  # use the version of perl from the shebang line in the test file
  sub get_perl {
      my $self = shift;
      if (my $shebang = $self->shebang( $self->{file} )) {
          $shebang =~ /^#!(.*\bperl.*?)(?:(?:\s)|(?:$))/;
          return $1 if $1;
      }
      return $self->SUPER::get_perl(@_);
  }


SEE ALSO

the TAP::Object manpage, the TAP::Parser manpage, the TAP::Parser::IteratorFactory manpage, the TAP::Parser::SourceHandler manpage, the TAP::Parser::SourceHandler::Executable manpage, the TAP::Parser::SourceHandler::File manpage, the TAP::Parser::SourceHandler::Handle manpage, the TAP::Parser::SourceHandler::RawTAP manpage

 TAP::Parser::SourceHandler::Perl - Stream TAP from a Perl executable